1.Analysis of the imaging features and influencing factors of symptomatic carotid artery stenosis using optical coherence tomography
Chunqiao LIU ; Di LI ; Chunyu YU ; Zhongjun CHEN
Chinese Journal of Cerebrovascular Diseases 2025;22(10):712-720
Objective This study analyzes the optical coherence tomography(OCT)characteristics of patients with symptomatic carotid artery stenosis(CAS)prior to carotid stenting and the influencing factors associated with symptomatic CAS.Methods This study retrospectively included consecutive CAS patients who underwent carotid OCT examination prior to carotid stenting at Department of Nerolgical Intervention and Nerological Intensive Care,Central Hospital of Dalian University of Technology(Dalian Municipal Central Hospital)from November 2022 to November 2024.Patients were categorized into symptomatic and asymptomatic CAS groups.General clinical data and laboratory test results were collected and compared between the two groups,including age,sex,body mass index,systolic and diastolic blood pressure(measured on the morning of procedure without antihypertensive medication intervention with patient at resting state for over 30 minutes),medical history(including hypertension,diabetes,atrial fibrillation,coronary heart disease,stroke,and transient ischemic attack),smoking history,alcohol consumption history,and fasting laboratory results obtained on the morning before procedure laboratory results(including,white blood cell count,red blood cell count,monocyte percentage,neutrophil percentage,lymphocyte percentage,platelet count,blood creatinine,blood glucose,international normalized ratio,D-dimer,total cholesterol,triglycerides,homocysteine,low-density lipoprotein cholesterol,and high-density lipoprotein cholesterol).Additionally,OCT image parameters were collected and compared between the two groups,including the minimum lumen diameter and minimum lumen area of the target lesion segment,the distal lumen diameter and area of the reference vessel(internal carotid artery),the percentage of lumen area stenosis([reference vessel lumen cross-sectional area-minimum lumen cross-sectional area]/reference vessel lumen cross-sectional area×100%),the lesion length,fibrous cap thickness,lipid arc,and the presence of fibrous plaques,calcified plaques,lipid plaques,white thrombus,cholesterol crystals,macrophage infiltration,microchannels,and plaque rupture.Variables with P<0.05 from univariate analysis were included in the multivariate Logistic regression analysis to assess the influencing factors of symptomatic CAS.Results A total of 68 patients with CAS were enrolled,comprising 57males and 11females,aged 53 to 84 years with a mean age of(68±7)years.Among them,32 patients were categorized into the symptomatic CAS group and 36 into the asymptomatic CAS group.(1)Compared to the asymptomatic CAS group,patients in the symptomatic CAS group exhibited higher systolic blood pressure([150±23]mmHg vs.[138±21])mmHg,P=0.025).There were no statistically significant differences in general,clinical data,and laboratory test results between the two groups(all P>0.05).The preoperative OCT imaging parameters comparison between the two groups of CAS patients revealed that the reference vessel distal lumen area was significantly smaller in the symptomatic CAS group([18.67±5.44]mm2 vs.[21.95±5.57]mm2,P=0.017),and the proportion of patients with white thrombus(40.62%[13/32]vs.13.89%[5/36],P=0.013)and microchannels(21.88%[7/32]vs.2.78%[1/36],P=0.014)were higher.(2)A multivariate Logistic regression analysis was conducted using systolic blood pressure,white thrombus,microchannels,and the reference vessel(internal carotid artery)distal lumen area as independent variables.The results indicated that high systolic blood pressure(OR,1.030,95%CI 1.002-1.060,P=0.038),and the presence of white thrombus(OR,3.956,95%CI 1.072-14.600,P=0.039)and microchannels(OR,13.850,95%CI 1.277-150.203,P=0.031)were independent risk factors for symptomatic CAS.Conclusions Compared to patients with asymptomatic CAS,those with symptomatic CAS exhibited higher preoperative(pre-carotid stenting)systolic blood pressure and a smaller distal lumen area of the reference vessel(internal carotid artery),as observed through OCT.Furthermore,a higher proportion of symptomatic CAS patients presented with white thrombus and microchannels.Preoperative systolic blood pressure,along with the presence of white thrombus and microchannels on OCT,are identified as independent risk factors for symptomatic CAS.The conclusions drawn from this study necessitate further validation through large-scale,multicenter,prospective research.
2.Analysis of the imaging features and influencing factors of symptomatic carotid artery stenosis using optical coherence tomography
Chunqiao LIU ; Di LI ; Chunyu YU ; Zhongjun CHEN
Chinese Journal of Cerebrovascular Diseases 2025;22(10):712-720
Objective This study analyzes the optical coherence tomography(OCT)characteristics of patients with symptomatic carotid artery stenosis(CAS)prior to carotid stenting and the influencing factors associated with symptomatic CAS.Methods This study retrospectively included consecutive CAS patients who underwent carotid OCT examination prior to carotid stenting at Department of Nerolgical Intervention and Nerological Intensive Care,Central Hospital of Dalian University of Technology(Dalian Municipal Central Hospital)from November 2022 to November 2024.Patients were categorized into symptomatic and asymptomatic CAS groups.General clinical data and laboratory test results were collected and compared between the two groups,including age,sex,body mass index,systolic and diastolic blood pressure(measured on the morning of procedure without antihypertensive medication intervention with patient at resting state for over 30 minutes),medical history(including hypertension,diabetes,atrial fibrillation,coronary heart disease,stroke,and transient ischemic attack),smoking history,alcohol consumption history,and fasting laboratory results obtained on the morning before procedure laboratory results(including,white blood cell count,red blood cell count,monocyte percentage,neutrophil percentage,lymphocyte percentage,platelet count,blood creatinine,blood glucose,international normalized ratio,D-dimer,total cholesterol,triglycerides,homocysteine,low-density lipoprotein cholesterol,and high-density lipoprotein cholesterol).Additionally,OCT image parameters were collected and compared between the two groups,including the minimum lumen diameter and minimum lumen area of the target lesion segment,the distal lumen diameter and area of the reference vessel(internal carotid artery),the percentage of lumen area stenosis([reference vessel lumen cross-sectional area-minimum lumen cross-sectional area]/reference vessel lumen cross-sectional area×100%),the lesion length,fibrous cap thickness,lipid arc,and the presence of fibrous plaques,calcified plaques,lipid plaques,white thrombus,cholesterol crystals,macrophage infiltration,microchannels,and plaque rupture.Variables with P<0.05 from univariate analysis were included in the multivariate Logistic regression analysis to assess the influencing factors of symptomatic CAS.Results A total of 68 patients with CAS were enrolled,comprising 57males and 11females,aged 53 to 84 years with a mean age of(68±7)years.Among them,32 patients were categorized into the symptomatic CAS group and 36 into the asymptomatic CAS group.(1)Compared to the asymptomatic CAS group,patients in the symptomatic CAS group exhibited higher systolic blood pressure([150±23]mmHg vs.[138±21])mmHg,P=0.025).There were no statistically significant differences in general,clinical data,and laboratory test results between the two groups(all P>0.05).The preoperative OCT imaging parameters comparison between the two groups of CAS patients revealed that the reference vessel distal lumen area was significantly smaller in the symptomatic CAS group([18.67±5.44]mm2 vs.[21.95±5.57]mm2,P=0.017),and the proportion of patients with white thrombus(40.62%[13/32]vs.13.89%[5/36],P=0.013)and microchannels(21.88%[7/32]vs.2.78%[1/36],P=0.014)were higher.(2)A multivariate Logistic regression analysis was conducted using systolic blood pressure,white thrombus,microchannels,and the reference vessel(internal carotid artery)distal lumen area as independent variables.The results indicated that high systolic blood pressure(OR,1.030,95%CI 1.002-1.060,P=0.038),and the presence of white thrombus(OR,3.956,95%CI 1.072-14.600,P=0.039)and microchannels(OR,13.850,95%CI 1.277-150.203,P=0.031)were independent risk factors for symptomatic CAS.Conclusions Compared to patients with asymptomatic CAS,those with symptomatic CAS exhibited higher preoperative(pre-carotid stenting)systolic blood pressure and a smaller distal lumen area of the reference vessel(internal carotid artery),as observed through OCT.Furthermore,a higher proportion of symptomatic CAS patients presented with white thrombus and microchannels.Preoperative systolic blood pressure,along with the presence of white thrombus and microchannels on OCT,are identified as independent risk factors for symptomatic CAS.The conclusions drawn from this study necessitate further validation through large-scale,multicenter,prospective research.
3.Excavation and Analysis of ADR Signals of Fluconazole ,Ketoconazole,Itraconazole and Voriconazole after Marketing
Hailin LIU ; Hongmei YUAN ; Hu WANG ; Junlin DIAO ; Chunqiao ZHOU ; Xiaoli DING ; Xuelin ZHANG ; Zhi DONG ; Song WANG
China Pharmacy 2020;31(9):1118-1123
OBJECTIVE:To excavate the safety warning signals induced by azole antifungal agents ,including fluconazole , ketoconazole,itraconazole and voriconazole after marketing ,and to provide references for rational drug use in the clinic. METHODS:Reporting odds ratio (ROR)data mining algorithm was used to investigate signals of adverse drug event (ADE)for fluconazole,ketoconazole,itraconazole and voriconazole from FDA Adverse Event Reporting System (FAERS)during January 1st,2004 to March 30th,2019. ROR data mining method was used to excavate the ADR signals of the drugs ,and main ADR involved in the safety information of azole antifungal agents instructions were analyzed. RESULTS :A total of 27 831,5 712, 5 381 and 11 333 reports were picked out for fluconazole ,ketoconazole,itraconazole and voriconazole ,respectively. All of these drugs had exhibited high-risk signals detection by ROR ,including medical examination ,blood and lymphatic system disorders , renal and urinary disorders ,endocrine diseases ,hepatobiliary disorders. The hepatotoxic-related ADR signals were mainly concentrated in fluconazole and voriconazole (fluconazole ROR =6.51,voriconazole ROR =14.65);ADR detection results of Cushing’s-like syndrome (ROR=24.86) and adrenal suppression (ROR=44.06) by itraconazole showed high-risk signals ; ketoconazole and itraconazole had showed a strong ADR signal in adrenocortical dysfunction (ketoconazole ROR =15.64, itraconazole ROR =23.26),and the signal intensity of ketoconazole (ROR=2.81)in skin and subcutaneous tissue disorders was significantly higher than that of other drugs . In addition ,hemorrhagic cystitis caused by fluconazole,itraconazole and voriconazole were not included in the drug instructions (fluconazole ROR =17.73,itraconazole ROR =31.43,voriconazole ROR =17.06); netted green spot caused by fluconazole (ROR=10.50)were not included in the drug instructions . CONCLUSIONS:Clinical staff should pay more attention to the differences in serious ADR related to fluconazole ,ketoconazole,itraconazole and voriconazole ; particularly some ADRs not mentioned in the drug instructions but have high incidence such as hemorrhagic cystitis caused by fluconazole,itraconazole,voriconazole and netted green spot caused by fluconazole ,as well as ADRs mentioned in the drug instructions but have abnormally high signal ,such as Cushing ’s-like syndrome and adrenal suppression caused by itraconazole .
4.Effect of acupuncture on TGF-β1/Smads pathway in mice with airway remodeling mic.
Huihui LIU ; Jiayi LIU ; Meiyu PENG ; Yuhui LI ; Chunqiao LI
Journal of Southern Medical University 2018;38(11):1372-1377
OBJECTIVE:
To investigate the effect of acupuncture on TGF-β1/Smads signaling pathway in the lung tissue of mice with airway remodeling.
METHODS:
Thirty specific pathogen-free mice were randomly divided into blank group, model group and acupuncture group (=10). Mouse models of asthma were established in the model group and the acupuncture group, and the mice in the latter group received 7 acupuncture therapies (at bilateral Fei Shu, Da Zhui and Zu Sanli, 20 min each time) every other day, starting on the 10th day after the modeling. At 24 h after the last acupuncture, the mice were subjected to inhalation of 1% OVA for 3 days, and 24 h after the last challenge, the mice were given methacholine chloride (Mch) inhalation at different concentrations for measurement of lung resistance using a noninvasive stroke volume meter. HE staining was used to observe the pathological changes in the lung tissues, and TGF-β1 levels in the the bronchoalveolar lavage fluid (BALF) and serum were detected using ELISA; Western blotting was used to detect the differential protein expressions in the airway smooth muscles between the two groups. The airway smooth muscle cells were isolated from the mice in the acupuncture group and treated with a TGF- β1 inhibitor (LY2157299), and the relative expressions of type-Ⅰ and Smads proteins were detected using Western blotting.
RESULTS:
The mice in the model showed obvious tracheal fistula with airway pathologies including lumen narrowing, bronchial mucosa thickening, dissociation of the epithelial cells, and thickening of the alveolar septum and airway smooth muscles. These pathological changes were obviously milder in the acupuncture group. The asthmatic mice exhibited significantly increased lung resistance in positive correlation with Mch concentration. Serum TGF-β1 level was significantly elevated in asthmatic mice ( < 0.05); TGF-β1 levels in the serum and BALF were significantly lower in the acupuncture group than in the model group ( < 0.05). In the model group, the expressions of -SMA, TGF-β1 and Smads in the airway smooth muscles were significantly higher than those in the other two groups (both < 0.05). In cultured airway smooth muscle cells, the expressions of type-Ⅰ and Smads were significantly higher in cells treated with LY2157299 than in the control cells (>0.05).
CONCLUSIONS
Acupuncture can inhibit airway remodeling by inhibiting the expression of airway TGF-β1 and down-regulating the expression of Smads and -SMA to reduce airway inflammatory response. Airway expressions of type-Ⅰ and Smads proteins remain high after inhibiting TGF-β1. Acupuncture may control asthma progression through the TGF-β1/Smads pathway.
Acupuncture Points
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Acupuncture Therapy
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Airway Remodeling
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Airway Resistance
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Animals
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Asthma
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metabolism
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pathology
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therapy
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Bronchi
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pathology
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Disease Progression
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Lung
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metabolism
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physiopathology
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Mice
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Muscle, Smooth
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Random Allocation
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Smad Proteins
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analysis
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metabolism
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Transforming Growth Factor beta1
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analysis
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metabolism
5.Inhibitory effect of dipeptide peptidase inhibitors analogues on LPS-induced inflammatory response on microglia
Yingjun LIU ; Song WANG ; Hailin LIU ; Chunqiao ZHOU ; Hongmei PENG ; Jun WEN ; Yu CHEN ; Dongmei HUANG ; Zhiguo FAN
Journal of Regional Anatomy and Operative Surgery 2017;26(1):13-17
Objective To study the inhibitory effect and mechanism of dipeptide peptidase inhibitors analogues on LPS -induced inflam-matory response on microglia .Methods Microglia cells were cultured ,isolated and purified from the neonatal Sprague-Dawley rats.Divided them into blank group ,negative control ,LPS group and medicine group ( parallel determination for 3 times each group ) after pharmacological preconditioning for 48 hours.The optimal concentration of microglia proliferation induced by LPS were measured by MTT assay .Observed the role of dipeptide peptidase inhibitors analogues on LPS-induced microglia in different concentrations .The interleukin1β( IL-1β) ,tumor necro-sis factor alpha ( TNF-α) were assayed by enzyme-linked immunorrbent assay ( ELISA ) .The expression of TLR-4 was detected by Western blotting and the expression of NF-κB was detected by RT-PCR.Results LPS induced the proliferation of microglia and significantly in-creased the release of inflammatory cytokines in LPS-stimulated primary microglia .Compared with the blank group ,dipeptide peptidase inhibi-tors analogues could inhibit this effect and the IC 50 values was 1.014 ×10 -2 mol/L to MG after pretreatment for 48 hours.Dipeptide peptidase inhibitors analogues could inhibit the release of TNF-αand IL-1 significantly(P<0.01),and it decreased the expression of TLR4 and NF-κB signif-icantly(P<0.01).Conclusion This research suggests that dipeptide peptidase inhibitors analogues restrain cell proliferation and inflammatory re-sponse of LPS-stimulated microglia,and the possible mechanism may be related to the inhibition of the expression of TLR-4 and NF-κB.
6.Diagnosis and treatment of liver trauma (a report of 210 cases)
Qiwu LIU ; Zixiu ZHANG ; Yuntao LI ; Zhenzong YANG ; Chunqiao HE
Chinese Journal of General Surgery 2001;10(3):259-261
Objective To explore the ideal effective treatment of liver trauma. Methods The injury state, treating methods, effect and death causes of 210 patients with liver trauma were retrospectively analysed. Results Of the patients, the liver trauma was in degrees Ⅳ Ⅴ Ⅵ in 88 cases (41.9%). Among 198 cases treated with operation, 39 underwent partial hepatectomy, 13 with gauze packing, 146 with debridement and suturing. 2 receieved inferior vena cava repairing, 4 liver atrery ligation. 19 patients died of serious injury, the death rate was 9% (19/210). Of the 19 cases, 12 (63.2%) died of great amount blood loss. Conclusions The treatment of liver trauma should depend on the degree of injury. The death rate could be reduced by shortening the preoperative time and decreasing the amount of blood loss. Gauze packing can be applied as a temporary way to save the patients life.
7.Study of immunoadjuvant effect induced by three types of bacterial genomes and CpG ODN to avian influenza virus H5N1 subtype inactivated oil emulsion vaccine
Yimeng WANG ; Yan LIU ; Chunqiao SHAN ; Shuangxi MING ; Guotuo JINAG
Chinese Journal of Immunology 1999;0(12):-
0.05) or significantly enhanced(P0.05).In this case,the immunoadjuvant capability of CpG ODN was better than FQ68 genomes.Conclusion:CpG ODN or FQ68 genome enhances humoral and Th1 type of immune responses when packed into AIV oil emulsion vaccine,while the adjuvants do not show better adjuvanticity when separated from the oil emulsion vaccine.

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